Wheel for motor-plows and the like.



EL FOR MOJOP, PLOWS AND THE LIKE.

WHE

APPLICATION FILED .'\UG.4. 1914.

ntened Dec. i?? EMS.

UNITED sTAris f CARL GLEICHLEV, orlBEYItLIN, GERMANKAssIGfNon 'ro -sirook MoToRPFLUG GESELL SCHAFT MIT BESCHRANKTER HAFTUNG, F BERLIN, `GERMANY, A CORPORA- l 'non or GERMANY.

To aZZww/mz't may concern.' I. y l

Be it known thatvI, CARL Gmroiimacitizen of the German"Empire`,and resident of Berlin, Germany,have invented certain new and useful A Improvements in Wheels for Motor-Flows andthe like, of which the following is a specification.

My invention relates vto road wheels for motor plows and the like of the kind in which the tread is provided with projecting ribs, grippers or the like and is of variable width to enable such road wheels to travel on marshy or insecure ground.

In the laccompanying drawing which shows one construction of wheel according to my invention, by way of example, Figure 1 is an elevation, partly in section, of the bottom portion of a road wheel. Fig. 2 is a section on the line A-B of Fig. 1, on an enlarged scale, and Fig. 3 shows a modified construction of the ribs or grippers used for the road wheel.

The rim 1 of the road Wheel 2 is provided on its tread in the well known manner with grippers 3 arranged at al distance behind each other and suitably connected to the rim 1, for instance, by means of bolts 4. The grippers 3 project laterally to a considerable extent beyond the rim 1, which results in the grippers meeting the eatest possible resistance on engaging with the ground.

According to my invention, the port-ions of the grippers 3, which project laterally beyond the rim 1, are utilized for detachably securing the tread rings 5 used for widening the contact surfaces or tread of the rim 1. To that end, the rings 5 which are preferably formed of U-shape in crosssection, are connected by means of bolts 7 to the upper or peripheral supporting portions 6 of the grippers, which are bent at an angle without any further connection of the rings 5 to the rim 1 being required. This connection of the tread rings 5 to the lateral portions of the grippers 3 can be very easily effected by placing the rings (Fig. 2) at the side, as the parts to be connected together are exposed at the outside and in that way the securing members can be easily attached or removed. Moreover, owing to this method of connection, an appreciable strengthening of the grippers 3 projecting beyond the rim 1, is insured, whereby any .PATENT ourson. i

WHEEL FOB, MOTOR-FLOWS AND THE LIKE.

Specification ofLetters Patent Patented Dea, 17, 1918, Application led August 4i, 19,14*. Serial No. 854,931.

ychanges "in the shape of the grippers and the consequent disadvantage `as, regards their action, are avoided.

According to the Vextent, to which the tread of the road wheel is tobe widened, the latter can be connected in a readily detachable manner on one or both sides to narrower or wider rings, and in that way easily adapted to the existing conditions o-f the ground.

In traveling on clayey or very adhesive soil, there is the drawback that the angular spaces inclosed f'by the central portion of the grippers 3 and the adjoining portions of the rim 1, are more or less filled with soil which adheres thereto when the grippers leave the ground. The consequence is that the central portion of the grippers'becomes more or less ineffective as regards the driving of `the wheel, and in that way the grippers cannot fulfil their object to an adequate extent.

In such cases, I find it advisable to use grippers which, as shown in Fig. 3 of the drawing, are provided with a recess 8 breaking the cutting edge of the gripper 3 in the middle and preferably widening from the inside outward in au V-shape, though it will be understood that the shape of the recess may be varied if desired. This recess 8 prevents the adhesion of soil in the angular spaces between the grippers and the rim,

or reduces it to an extent which is quite` negligible in practice.

I claim:

1. A road-wheel for motor plows and the like, provided with a rim forming a tread surface, grippers secured to said rim and projecting both outwardly and beyond said tread surface, and tread-widening rings secured detachably to the lateral projections of said grippers, and adapted to increase the width of said tread surface.

2. A road-wheel for motor-plows and the like, provided with a rim forming a tread surface, grippers secured to said rim and projecting therefrom laterally at intervals, the spaces between adjacent grippers being of considerably greater circumferential extent than the grippers themselves, whereby the gripp-ers may enter the soil to such a degree as to cause the outer surface of the rim to form the tread surface, a detachable rim-widening ring adapted to be placed in contact with the laterally-projecting porvals and projectingv therefrom laterally,

rings in edge Contact With the ed es of said rim vand. havingtheir ou-ter sur ces flush with the outer rim surface and 1n enga-gement With the inner surfaces of the project` linggripper portions, anclmeans for securing said ringsfdetac'hahly' to .the projecting gripper portions.

4L. A roaldfwheel for motor-plows and the Copies ofthis patent may be, obtained for ve cents each, .by laddressing the Commissioner Washington, D. G'.

-zi-nd rings,

like, pro-vided with a rim forming n tread surface, grippers secured to said rim at intowels and projecting therefrom laterally, l nedge contact with the edges of said rim, secured detaohably to the laterally projecting portions of said grippers to widen the tread surface.

In testimony whereof, I have signed this specification in the presence of vtwo Subscribing Witnesses.

CARL GLEICHE.

, Witnesses:

HERMANN PERINI, FRANZ ZOMMULLER.'

of Patents, 

